DORMA BTS 75 EN1-4 floor spring body with 90° hold-open. Including cement box and standard spindle.
The BTS 75V is a universal non-handed floor spring for left hand (LH) or right hand (RH) single and double action doors. With adjustable spring stength and closing speed, with closing action operational from approx. 175°. Featuring hydraulically fully controlled closing cycle and mechanical backcheck.
This model is hold-open at 90°.
Suitable for installation on doors up to 1100mm (W) with a max. 120kg leaf weight.